Automatic pressure-regulator for soda-fountains of bottling-machlnes



L. LEONHARDT. AUTOMATIC PRESSURE REGULATOR FOR SODA FOUNTAINS 0B BOTTLING MACHINES. Y

Patented Aug. 2, 1887.

L G d 0 M 0 N UN TED STATES PATENT OF ICE- LOUIS LEONHARDT, OF ST. LOUIS, MISSOURI.

AUTOMATIC PRESSURE-REGULATOR FOR SODA-FOUNTAINS OF BOTTLING-MACHlNES. O

. SPECIFICATION forming part of Letters Patent No. 367,645, dated August 2, 1887-.

Appli cation filed December 17, 1886. Serial No.522-2,(l71.

(No-model.v

To all whom it may concern:

Be it known that I, Louis LEONHARDT, a subject of the Emperor of Germany, and a resident of the city of StxLouis, in the State of Missouri, have invented certain new and useful ImprovementsinPrcssuredtegulatorsforSoda- Fountains for Bottling-Machines, of which the iollowing is a specification.

This invention specially relates tobottlingmachines wherein a constant and like pressure is required to' force the liquid into the bottles;

. and the object of my invention is to automaticall y regulate and keep up the required press nre in the fountains at all times during the l)ottlihg't-herefrom;the'prcssure being derived from a generator, as usual.

The improvementsconsist, firstfin the constructionand arrangement of pipes, valves,

and a spring to form an improved device, which is placed as an intermediate between the generator arid fountain, the compressed air or gas being reglulated to'giv e the desired press ureby passi 'g through this device from the generator before passing into the fountain,and,

secondly, in the construction of detail part-s, allof which will hereinafter fully appear and be claimed.

To more fully describe my invention, and to enable others to fully understand the same,

reference is had to the accompanying drawings, in whieh-- I Figurel is a side View of my improved pressure-regulator. Fig. 2 is a vertical section of Fig. 1.

A is a pipe which supports the regulator-top of the soda-fountain, and by which communication is established between both. On top of the pipeAis placed a hollow-metal cup, B,preferably of thc shape shown in the-drawings. This cup 13 is made in two halves, held together v bv bolts and nuts passing through the annular wanted in the fountain.

or if same is not used, then on top of the diaphragrn, is a stem, D, having a circular disk, (11, below, which covers the largest portion of the area of the diaphragm. The stem is secured upper end passes through the top of the cup to the outside. On top of the 'stemis a nut, (17, which may be raised or lowered by turning it, and serves to regulate the diaphragm to act at any'pressure desired, by allowing it to rise more or less before acting on thevalvc-lever E, the long arm of which passes over is raised. This lever E is fulcrumed ateto the frainc'ol" thergiilaton or any other convenient part of same. pivoted to, a vertical stem, f, of a valve, F. This valve F is a rubber diaphragm placed in a Valve'ehamber or cup, F, similar in construction to the cup B, already described,and

bers and f". The "valve-stem f passes A diskrhead, f, which forms part of the valvestem itself, or is secured to it, spreads over the top of the valve to strengthen it. The valve opens and closes the opening of the out which communicates with the A pipe, H, connects the partment, f, to the pipe A, cup B and fountain. lower valve-chamber, f", n

The compressed air or gas from the generator passing through the pi,pe-H into the valvechamber f 2 by its pressure raises the valveF, which opens the pipeG below it, allowing the compressed air or gas to enter into and pass through it to the fountain, until the desired pressure is reached insaid fountain, when the diaphragm b is raised by the excess pressure. raising the stem and long arm of the lever E, which in turn, through the short arm, presses down the valve-stem and valve and closes the opening of the pipe G, cutting off the supply ofair or gas from the generator to the fountain. As soon as the pressure in the fountain diminishes by the drawing off of its contents, the. diaphragm and stem drop, relieving the leverand releasing the valve, when the pressure underthe latter raises it, and the action is repeated.

To balance the valve F, or nearly so, and so and nut, and is raised thereby as the diaphragm divides samelinto two compartments or channthrough the valve and is held to it by a 'nut, f.-

pipe G, communicating from the lowerhornthrough the bottompf same to the diaphragm by a nut, d, below, and its thestem The short arm of the lever is with the generator.

, sible over and above that required in the fountain, I provide a similar cup, I, with a diaphragm, i, and place same somewhat above the valve-cup in a vertical line with same, and

support it bya yoke or frame, J. The diaphragm divides the cupI into two compartments or chambers, 73 and i and is bolted to a stem, is, by the nut k. This stern k has a flanged head, 76-, resting against the underside of the diaphragm, and a seat, i limits the movement of the diaphragm and stem upward. The stem extends out through the'bottom of thelower chamber 11 of the cup, and has ahore,

W, in its lower end, into which the upper end, f of the valvestem enters. A-spiral spring,

surrounds the joining ends of both stems and rests on a collar,f, of the valvestem. A nut, is, on the lower end'of the stem 70 sets over the spring, less by turning the nut up or down. This spring is thus tensioned to correspond'with the pressure desired inthe fountain. The upper chamber, 1', of the cup I communicates by a pipe, H, with the generator, or the pipes H are preferably made one and communicate with the generator. Thus the pressure top of the diaphragm t, of the upper cup, I, is

the same as the pressure up against the bottom of the valve F, and the valve is balanced.

The spring L and nut d of. the stem D being set to the same pressure required in the fountain, the action of closing and opening of the pipe G- by the valve is instantly effected as the pressure in thefountain varies, and the action of the regulator is automatic.

which is tensioned more or- This regulator may be used for various other purposes, where a certain pressure is constantly required to be maintained, whether a 0 f and 7c, and spring L, substantially as herein shown and described, and forth.

2. In a pressure regulator, the balanced "alve consisting of two diaphragms, F and 1, within their respective cups tensioning-spring,L, connecting the ends of the respective stems f and k of the diaphragms F and i, in combination with the pipes H and H, connecting with the generator, and the pipes G and A, communicating with and cup B, the latter being provided with the diaphragm I), connected by astein, I), having the adjusting-nut d and operating on thc'lever E to raise or lower the lower diaphragm for the purpose set F of the balanced valve to open and close the 65 pipe G, substantially as and set forth.

for the purpose LOUIS LEONHABDT.

F and I, and a the fountain 6o pressnre-regulator, the 45 

